KR870010202A - The metal melting furnace method - Google Patents

The metal melting furnace method Download PDF

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KR870010202A
KR870010202A KR870003274A KR870003274A KR870010202A KR 870010202 A KR870010202 A KR 870010202A KR 870003274 A KR870003274 A KR 870003274A KR 870003274 A KR870003274 A KR 870003274A KR 870010202 A KR870010202 A KR 870010202A
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characterized
melting furnace
metal
method
dissolving
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KR870003274A
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Korean (ko)
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KR920000524B1 (en
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죤 마데버 웨인
프란시스 리레이 미첼
죠세프 세라인즈 로날드
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리모씨 엔. 비숍
유니온 카바이드 코포레이션
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Priority to US06/849,389 priority patent/US4699654A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/12Working chambers or casings; Supports therefor
    • F27B3/14Arrangements of linings
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52Manufacture of steel in electric furnaces
    • C21C5/5211Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
    • C21C5/5217Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace equipped with burners or devices for injecting gas, i.e. oxygen, or pulverulent materials into the furnace
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/05Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/16Remelting metals
    • C22B9/20Arc remelting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00Charging; Discharging; Manipulation of charge
    • F27D3/16Introducing a fluid jet or current into the charge
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Process efficiency
    • Y02P10/21Process efficiency by recovering materials
    • Y02P10/212Recovering metals from waste
    • Y02P10/214Recovering metals from waste by pyro metallurgy
    • Y02P10/216Recovering metals from waste by pyro metallurgy of Fe

Abstract

내용 없음 No information

Description

용해로와 금속용해방법 The metal melting furnace method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음 This information did not disclose more professional information because lumbar Articles

제1도는 특히 바람직한 전극과 송풍구장치를 나타내는 전기 아아크로의 로상(hearth)에 대한 평면도. A first turn in particular a plan view of a rosang (hearth) of a electric arc electrode and showing a preferred tuyere device.

제3도는 본 발명의 용해로에 유용한 송풍구 블록의 하나의 실시예. The third turning example embodiment of a tuyere block useful in a melting furnace of the present invention.

제4도는 본 발명의 용해로에 유용한 송풍구블록의 또 하나의 실시예. The fourth example embodiment turns one more of the tuyere block useful in a melting furnace of the present invention.

Claims (25)

  1. 비교적 넓고 얇은 로상을 가지고, 전극(들) 부근의 금속이 로벽부근의 금속보다 앞서 용해하는, 적어도 하나의 용해 전극을 설비한 용해로에서 금속을 용해하는 방법에 있어서, 로의 바닥을 뚫고 용융금속내로 가스분사수단을 통해서 분사가스를 농축프루움으로서 분사하여 분사가스 분사지점(들) 위에서만 용융금속 표면상에 국부적인 교반을 일으키며, 이 분사지점(들)은 로상의 중앙으로부터 벗어나서 국부적인 교반(1)이 전극(들)에 어떠한 금속도 튀기지 않고, (2)용융금속에서 고체금속으로 열이 급격하게 전달됨으로써 로이 벽근처에 고체금속의 용해를 가속시킴을 특징으로 하는 용해로에서 금속을 용해하는 방법. It has a relatively wide and thin rosang a process for which the metal in the vicinity of the electrode (s) dissolve earlier than the metal in the vicinity of robyeok, dissolving the metal in at least one of the melting furnace a facility for melting the electrode and gas into the molten metal through the floor of the furnace by the injection gas through the injection means concentrated loop injection as ruum causes a localized agitation on only the molten metal surface above the injection gas injection point (s), the injection point (s) outside from the center localized agitation (1 on a ) method of dissolving a metal in a melting furnace, characterized by Sikkim accelerate the dissolution of solid metal near Roy wall by being without splashing of any metal on the electrode (s), (2) passing the column is suddenly in the molten metal to a solid metal .
  2. 제1항에 있어서, 가스분사수단이 적어도 하나의 송풍구로 이루어짐을 특징으로 하는 용해로에서 금속을 용해하는 방법. The method of claim 1, dissolving the metal in a melting furnace, characterized by the gas injection means is yirueojim with at least one ventilation opening.
  3. 제1항에 있어서, 불활성가스가 적어도 세개의 분사지점(들)을 통해서 멜트내로 분사됨을 특징으로 하는 용해로에서 금속을 용해하는 방법. 2. The method of claim 1 wherein the inert gas is dissolved in the metal melting furnace, characterized in that at least injected into the melt through the three injection point (s).
  4. 제1항에 있어서, 각 분사지점이, 전극들 중 어느 전극보다도 로상의 중심으로부터 더 멀어짐을 특징으로 하는 용해로에서 금속을 용해하는 방법. The method of claim 1, wherein each injection point, the method of dissolving the metal in a melting furnace, characterized by further goes away from the center of the electrode by more than any of the electrodes.
  5. 제1항에 있어서, 각 불활성가스 분사지점이 로상의 중심으로부터 로상반경의 적어도 50% 벗어남을 특징으로 하는 용해로에서 금속을 용해하는 방법. The method of claim 1, dissolving the metal in a melting furnace, characterized by at least 50% displacement of the rosang radius from the center of the in each inert gas injection point.
  6. 제1항에 있어서, 이 금속이 강임을 특징으로 하는 용해로에서 금속을 용해하는 방법. The method of claim 1, dissolving the metal in a melting furnace, characterized in that the metal is steel.
  7. 제1항에 있어서, 이 불활성가스가 질소임을 특징으로 하는 용해로에서 금속을 용해하는 방법. 2. The method of claim 1 wherein the inert gas is dissolved in the metal melting furnace, characterized in that the nitrogen.
  8. 제1항에 있어서, 이 불활성가스가 알곤임을 특징으로 하는 용해로에서 금속을 용해하는 방법. The method of claim 1, dissolving the metal in a melting furnace, characterized in that the inert gas is argon.
  9. 제1항에 있어서, 이 불황성가스가 이산화탄소임을 특징으로 하는 용해로에서 금속을 용해하는 방법. The method of claim 1, dissolving the metal in a melting furnace, characterized in that the inert gas is carbon dioxide.
  10. 제1항에 있어서, 세계의 전극이 사용되고 불활성가스가 전극들에 의해성 형성된 둘레의 바깥에 있고, 전극들 사이에 있으며, 로상의 중심으로부터 로상반경의 적어도 50% 벗어나 있는 점들로부터 용융금속내에 분사됨을 특징으로 하는 용해로에서 금속을 용해하는 방법. According to claim 1, wherein the electrode of the world is being used and on the outside of a circumference of an inert gas formed sex by the electrodes, and between the electrodes, injected from points on out at least 50% of the rosang radius from the center of the molten metal on to the method for dissolving a metal in a melting furnace, characterized in that.
  11. 제1항에 있어서, 불활성가스가 매 가스 분사수단당 1내지 40 SCFM의 범위내의 속도와 25내지 250psig의 범위내의 압력으로 분사됨을 특징으로 하는 용해로에서 금속을 용해하는 방법. The method of claim 1, dissolving the metal in a melting furnace, characterized in that the inert gas is injected at a pressure in the range of 1 to 40 SCFM every gas injection rate and 25 to 250psig in the range of per unit.
  12. 가스분사수단 둘레에 고급 내화물을, 이 수단의 상부 길이부의 적어도 일부에 제공함으로 이루어짐을 특징으로하는 제1항의 용해로에서 금속을 용해하는 방법. To dissolve the metal advanced refractory material to the gas injection means periphery, in the melting furnace of claim 1, characterized by yirueojim by providing at least a portion of the upper length of the means.
  13. 용융금속을 로밖으로 내보내고, 로내에 남아있는 잔류멜트가 응고하는 시간동안에 가스분사 수단을 통해서 흐르는 불활성 가스의 흐름속도와 압력을 증가시킴으로 이루어짐을 특징으로 하는 제1항의 용해로에서 금속을 용해하는 방법. Exported out into the molten metal, it remains a method of dissolving a metal in the first paragraph melting furnace, characterized in the residual melt occurs in portrait by increasing the flow rate and pressure of the inert gas flowing through the gas injection means during the time that solidification within a.
  14. 제1항에 있어서, 용융금속 내의 최종 질소함량이, 분사된 가스의 총량의 0에서 100%까지 변하는 질소의 양을 분사함으로써 증가하거나 또는 감소함을 특징으로 용해로에서 금속을 용해하는 방법. The method of claim 1, dissolving the metal in a melting furnace, characterized in that the final nitrogen content in the molten metal, increased or decreased by injecting the amount of nitrogen that varies from 0 to the total amount of the injected gas to 100%.
  15. (a) 적어도 하나의 내화물층으로 이루어진 바닥을 가지는 비교적 넓고 얇은 로상; (A) relatively large and thin rosang having a bottom made of at least one refractory layer;
    (b) 로안에 있는 적어도 하나의 전극 (B) at least one electrode in Ryan
    (c) 로상의 바닥을 뚫고, 내화물층(들)을 관통하며 로상내부와 통하는 적어도 하나의 가스분사 수단; At least one gas injection means through the bottom on to (c), passing through the refractory layer (s) and communicating with the interior rosang; And
    (d) 로상 내화물층(들)을 관통하는 가스분사 수단의 상부 길이부의 적어도 일부를 둘러싸는 고급내화물로 이루어짐을 특징으로 하는 용해로. (D) a melting furnace, characterized in the length of at least the upper advanced refractory made of an enclosing part of the gas injection means penetrating the refractory rosang layer (s).
  16. 제15항에 있어서, 이 가스분사 수단이 송풍구임을 특징으로 하는 용해로. The method of claim 15 wherein the melting furnace, characterized in that the gas injection means is a ventilation opening.
  17. 제16항에 있어서, 이 송풍구가 환상 송풍구임을 특징으로 하는 용해로. 17. The method of claim 16 wherein the melting furnace, characterized in that the outlet is annular tuyere.
  18. 제15항에 있어서, 이 가스분사 수단이 다공성 또는 투과성 요소임을 특징으로 하는 용해로. The method of claim 15 wherein the melting furnace, characterized in that the gas injection means is a porous or permeable element.
  19. 제15항에 있어서, 가스분사 수단이 불활성 가스의 원에 연결됨을 특징으로 하는 용해로. The method of claim 15, wherein the gas injection means is connected to the melting furnace characterized by a source of inert gas.
  20. 제15항에 있어서, 고급내화물이 고밀도 벽돌로 이루어진 그룹으로부터 선택되거나, MgO, MgO-CaO, MgO-Cr 2 O 3 , Al 2 O 3 및/또는 SiO 2 을 기본으로 하여 만들어짐을 특징으로 하는 용해로. The method of claim 15 wherein the high refractory or selected from the group consisting of high density bricks, MgO, MgO-CaO, MgO -Cr 2 O 3, Al 2 O 3 and / or a melting furnace, characterized in load created by the SiO 2 as the default .
  21. 제15항에 있어서, 가스분사 수단을 둘러싸는 고급 내화물이 분리된 조각들의 내화물로 이루어짐을 특징으로 하는 용해로. The method of claim 15 wherein the melting furnace to the gas injection means is characterized by a refractory made of an advanced refractory material of the separate pieces surrounding.
  22. 제15항에 있어서, 가스분사 수단을 둘러싸는 고급 내화물은 단일조각의 내화물로 이루어짐을 특징으로 하는 용해로. The method of claim 15, wherein the fine refractory material surrounding the gas injection means are made of an refractory melting furnaces, characterized by a single piece.
  23. 제15항에 있어서, 각 분사수단이 전극들 중의 어느 것보다도 로상의 중앙에서 더 멀어짐을 특징으로 하는 용해로. The method of claim 15 wherein the melting furnace, characterized in the further apart from the center on each of all the injection means to any of the electrodes.
  24. 제15항에 있어서, 각 분사수단이 로상의 중앙으로부터 로상반경의 적어도 50% 벗어남을 특징으로 하는 용해로. The method of claim 15 wherein the melting furnace, characterized by at least 50% displacement of the rosang radius from the center on each injection means.
  25. 제14항에 있어서, 세 개의 전극이 사용되고, 각 분사수단이 전극들에 의해서 형성된 둘레의 밖에 있고, 전극들 사이에 있으며, 로상의 중심으로부터 로상반경의 적어도 50% 벗어남을 특징으로하는 용해로. The method of claim 14, wherein the three electrodes are used, the outside of the circumference formed by the respective ejection means are electrodes, and between the electrodes, the furnace characterized by at least 50% displacement of the radius from the center of the rosang to.
    ※ 참고사항: 최초출원 내용에 의하여 공개하는 것임. ※ Note: Will you disclose by the first application information.
KR8703274A 1986-04-08 1987-04-07 Melting furnace and method for melting metal KR920000524B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US849389 1986-04-08
US06/849,389 US4699654A (en) 1986-04-08 1986-04-08 Melting furnace and method for melting metal

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KR870010202A true KR870010202A (en) 1987-11-30
KR920000524B1 KR920000524B1 (en) 1992-01-14

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US (2) US4699654A (en)
EP (2) EP0240998B1 (en)
JP (1) JPS62238985A (en)
KR (1) KR920000524B1 (en)
AT (1) AT70856T (en)
BR (1) BR8701581A (en)
CA (1) CA1300898C (en)
DE (1) DE3775443D1 (en)
ES (1) ES2028818T3 (en)

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RU2588700C1 (en) * 2014-12-26 2016-07-10 Владимир Александрович Трусов Shaft-reverberatory furnace for metal remelting
RU2649481C1 (en) * 2017-06-09 2018-04-03 Владимир Александрович Трусов Reverberatory oven for aluminum scrap remelting
RU2656426C1 (en) * 2017-09-21 2018-06-05 Владимир Александрович Трусов Reverberating furnace for metal remelting
RU2657948C1 (en) * 2017-11-02 2018-06-18 Владимир Александрович Трусов Reverberatory oven for aluminum scrap remelting
RU2699876C1 (en) * 2019-01-21 2019-09-11 Владимир Александрович Трусов Tandem reflecting furnace with forehearth for remelting of aluminum scrap

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US4796277A (en) 1989-01-03
AT70856T (en) 1992-01-15
CA1300898C (en) 1992-05-19
JPS62238985A (en) 1987-10-19
KR920000524B1 (en) 1992-01-14
US4699654A (en) 1987-10-13
ES2028818T3 (en) 1992-07-16
EP0240998B1 (en) 1991-12-27
EP0240998A1 (en) 1987-10-14
BR8701581A (en) 1988-01-26
DE3775443D1 (en) 1992-02-06
EP0375657A1 (en) 1990-06-27

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